entropy

A red door, in a gray house, in a golden field, beneath the perpetually clouded skies of wherever I am (that isn't important). When you open the door - yes, you - there will be nothing but a vast and dark cave beyond, but you will be unable to stop yourself from continuing onward. Eventually, like me, you will find another door, the same red as the first, and beyond you will find a city, a city crumbling to pieces around you. Do not worry; you will not feel a need to run or even a need to turn around to the safety of the cave - you will continue onward. Feel free to leisurely stroll the disintegrating boulevards and verandas, there are some beautiful, mostly-whole fountains there. I didn't find another door past the second, so perhaps, after you've gotten your fill,  you could help me and go a little bit farther than my amber body and see if there is more than this beige city.